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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
type t
(** Type of canaries. Canaries are used to ensure that an object does not use
generic operations. *)
val obj : t
(** Canary. In the current implementation, this object is marshallable,
forbids generic comparison but still allows generic hashes. *)
module type Obj = sig type t end
module Make(M : Obj) :
sig
type t
val prj : t -> M.t
val inj : M.t -> t
end
(** Adds a canary to any type. *)
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